MIL-PRF-81705E
individual roll shall be not less than 195 yards. The roll material shall be uniformly wound on
nonreturnable cores. The inside diameter of the core shall be not less than 3 inches, with a
tolerance of plus inch. The length of the core shall be equal to the width of the roll material,
with a tolerance of plus inch. The core shall be rigid to prevent distortion of the roll during
use and shipment conditions. Each roll shall be restrained to prevent unwinding (see 4.3).
3.4.2 Sheets. When flat cut sheets are specified, the length and width shall be as specified
by the acquiring activity (see 6.2). If the length and width tolerances for cut sheets are not
specified, the tolerance for each shall be plus ¼ inch or minus inch (see 4.3). Flat cut sheets
shall be evenly stacked (see 4.3).
3.5 Sealing. The barrier material shall exhibit no delamination of the sealed area when
sealed according to the manufacturer's recommended conditions (see 4.5). The barrier material
identification of material markings shall include the sealing conditions (see 3.6). Each roll or
package (flat cuts) of barrier material shall include a tag secured to the core of rolls, or sheet
inserted in the package of sheets with the sealing instructions for impulse seals and for heat-
sealing on rotary, band and jaw type sealing equipment. The tag or sheet shall be visible upon
opening the unit package (see 4.3).
3.6 Identification of material. The barrier material shall have two groups of markings in
block form and in machine direction. Group A marking shall state the specification number,
type, class, manufacturer's name, manufacturer's designation, month and year of manufacture, lot
number and heat sealing conditions (temperature, pressure and dwell time). The letters and
figures shall be clear, legible, and shall be not less than inch high. Group B markings shall
identify the protective qualities of the materials as follows: For type I EMI/STATIC SHIELD
and for type III STATIC SHIELD. These letters shall be not less than ½ inch high. The two
groups of markings on all three types of material shall be either printed using a water-resistant
ink or embossed and shall be visible if the material is fabricated into a bag or pouch. The two
groups of markings shall be printed or embossed sequentially, complete, and continuous
lengthwise with a space of one inch between groups. A complete group of markings shall appear
once in each six inches of width of the roll and flat cut. An example of the identification is as
follows (see 4.3):
NOTE: Both Date and Lot Number shall change for each production run.
MIL-PRF-81705E TYPE I CLASS 1
1"
MFR NAME MFR DESIGNATION
EMI/STATIC SHIELD
½" MIN
DATE
LOT NUMBER
SEALING CONDITIONS:
XXX °F, YY PSI, Z SEC
5
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business